In Spider-Man: Ultimate Power there are two in-game currencies:
- Coins - common, generally unlocked by collecting them in-game, and is used for basic (but permanent) upgrades
- ISO-8 crystals - rare - used for more premium upgrades, to skip wait times, to purchase temporary powerups (and "continues" after falling), and to unlock certain Spidey-suits.
You used to be able to purchase ISO-8 directly from the store, but the store is now defunct (given the game is delisted from Google Play, this is unsurprising):
Which leaves us only with in-game ways of earning ISO-8.
What are the different methods of earning ISO-8? Is there a reliable way of earning it consistently?



